5(-3.4k - 7) + (3k + 21) = -17k - 35 + 3k + 21 = -14k - 14
Using the distributive law:-
this = sqrt 14 sqrt 12 + sqrt 14 sqrt 7 - sqrt 3 sqrt 12 - sqrt 3 sqrt 7
= sqrt1 68 + sqrt 91 - sqrt 36 - sqrt 21
= sqrt 168 + sqrt 91 - sqrt21 - 6
Check the picture below
make sure your calculator is in Degree mode.
Answer:.
75(b - 4) = 450
Step-by-step explanation:
Given that :
Total amount to spend on books = 450
Total number of books = b
Cost per book = 75
Number of free books = 4
Hence, the number of books sabah will have to pay for will be :
Total Number of books - number of free books
b - 4
Cost of books purchased will be ;
Cost per book * number of books ;
75 * (b - 4)
Total cost = 450
Hence, we have ;
75(b - 4) = 450
D) 61 degrees
the two angles not touching the exterior angle add up to be the exterior angle therefore you plug in each of the answers by adding them to 57 until you get 118
57+61=118